âDermatosparaxis EDS â Dermatosparaxis is a rare form of EDS (MIM #225410) that is inherited in an autosomal recessive fashion. It is due to mutations in the ADAMTS2 gene, which result in deficiency of procollagen I N-terminal peptidase [20].
Distribution and habitat. Rheas are from South America only and are limited within the continent to Argentina, Bolivia, Brazil, Chile, Paraguay, Peru, and Uruguay. They are grassland birds and both species prefer open land. The greater rheas live in open grasslands, pampas, and chaco woodlands.
Rheas are the largest South American bird. Rheas weigh between 33 and 66 pounds (15 to 30 kilograms) and stand 3 to 5 feet tall (0.9 to 1.5 m) with the males larger than the females. They have long necks and legs.